From: Martin DeMello <martindemello@...>
Date: 2005-02-08T13:35:07+09:00
Subject: Re: iteration the ruby way

Robert Klemme <bob.news@gmx.net> wrote:
> 
> Note though that you might as well treat the *first* element specially. 
> IMHO that's usually easier even with #each:
> 
> first = true
> enum.each do |e|
>   if first
>     first = false
>   else
>     print " -- "
>   end
>   print e
> end
> print "\n"

Though I hate doing this, because that 'if', that you know is going to be
useless after the first time, is nonetheless run for every subsequent
element. I guess in terms of actually running time it's negligible, but
it still feels ugly.

martin